Hair drying brush



FIG. 1 is a top and front perspective view of a hair drying brush showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a left side elevation view thereof; and,

FIG. 7 is a right side view thereof. 

CLAIM The ornamental design for a hair drying brush, as shown and described. 